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| Brand | Samsung |
|---|---|
| Model | PM9A3 |
| Capacity | 3.84 TB |
| Usage Class | Enterprise / Data Center Read Intensive |
| Host Interface | PCIe Gen4 x4, NVMe 1.4 |
|---|---|
| Total Interface Bandwidth | 64 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V6 (128-layer) TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 7008 TBW |
| Sequential Read | 6800 MB/s |
|---|---|
| Sequential Write | 4000 MB/s |
| Random Read IOPS | 1000000 |
| Random Write IOPS | 180000 |
| Average Latency | 85 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZQL23T8HCLS-00A07 |
|---|
Compared with the earlier MZQL23T8HCLS-00A07, the MZQL23T8HCLS-00W07 is the stronger long-life procurement choice because it moves to Samsung V6 128-layer TLC, giving you a newer PM9A3 hardware revision with better flash-generation efficiency and qualification alignment for current PCIe Gen4 NVMe 1.4 server platforms. At 3.84 TB with 7008 TBW, 6,800/4,000 MB/s sequential throughput, and up to 1,000,000/180,000 IOPS, it delivers a well-balanced mix of endurance and read-centric performance that is especially attractive for virtualization clusters, scale-out storage nodes, and high-density cloud boot or caching tiers.
With an endurance rating of 7008 TBW and 1 DWPD, the MZQL23T8HCLS-00W07 is designed to handle writing its full capacity once per day across its warranty-rated service life, which is more than sufficient for typical enterprise boot, OS, and mixed read/write application workloads. In practical terms, under normal system-disk or mainstream server usage, this level of endurance provides long-term write headroom and supports worry-free operation for many years. For enterprise reliability, the drive includes Power Loss Protection (PLP), which helps preserve in-flight data and protects metadata integrity during unexpected power interruptions, reducing the risk of corruption and unplanned recovery events. Its UBER specification of 1.0E-17, together with a 2 million hour MTBF, reflects a very low probability of unrecoverable bit errors and strong overall dependability for business-critical environments.
1. Its modern PCIe/NVMe architecture keeps the drive aligned with current enterprise server platforms, reducing storage bottlenecks for virtualized workloads, analytics, and scale-out application nodes.
2. The combination of high streaming throughput and million-class read responsiveness speeds up large data set loading while sustaining fast access to small blocks in databases, search clusters, and AI inference pipelines.
3. The 1 DWPD endurance profile is well suited to read-heavy and mixed enterprise workloads, giving operators predictable lifespan for cloud instances, content delivery tiers, and general-purpose server storage.
4. Samsung’s V6 128-layer TLC NAND balances density, power efficiency, and reliability, helping data centers scale capacity economically without giving up enterprise-grade consistency.
5. Typical latency in the tens of microseconds helps applications respond faster under pressure, improving transaction handling, VM responsiveness, and overall quality of service.
Lower capacity reference: 1.92 TB Higher capacity reference: 7.68 TB Capacity positioning analysis: In this series, 3.84 TB is the sweet-spot capacity. Compared with 1.92 TB, it gives much better headroom for data growth, workload bursts, and overprovisioning flexibility, reducing the risk of early capacity exhaustion while keeping the same enterprise-class read/write and IOPS profile. Compared with 7.68 TB, it offers a more balanced acquisition cost, power footprint, and usable performance density, making budgeting easier without sacrificing mainstream deployment efficiency. It is especially well suited for mid-scale virtualization clusters, database nodes, or hyperconverged storage pools serving roughly 40 to 60 mixed business workloads.
Q: Is MZQL23T8HCLS-00W07 suitable for a write-heavy database server?
A: Yes, it can support moderate write-intensive database workloads. With 1 DWPD, 7008 TBW, low 85 µs latency, and enterprise TLC NAND, it is reliable, but not ideal for extremely heavy write environments.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated for 1 DWPD, meaning it can sustain one full capacity write per day over its warranty period. For a 3.84 TB drive, that equals about 3.84 TB written daily.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, it includes power loss protection. PLP helps preserve in-flight data and metadata during unexpected power failure, which is critical for enterprise systems requiring data integrity, consistency, and reduced corruption risk.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is commonly recommended for database and virtualization workloads, as it balances performance, redundancy, and low latency. For capacity-focused applications, RAID 5 or RAID 6 may also be considered.